<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <link rel="stylesheet" href="bootstrap-5.3.0-dist/css/bootstrap.min.css">
  <title>Document</title>
</head>
<body>
  <div class="container mt-2">
    <div class="row">
      <div class="col">
        <span>原图</span>
        <img src="images/slide_03.jpg" alt="">
      </div>
    </div>
    <div class="row mt-2">
      <div class="col">
        <span>响应式图</span>
        <img src="images/slide_03.jpg" alt="" class="img-fluid">
      </div>
    </div>
    <div class="row mt-2">
      <div class="col">
        <span>缩略图</span>
        <img src="images/slide_03.jpg" alt="" class="img-thumbnail">
      </div>
    </div>
  </div>
</body>
</html>